- Original Articles Gastroenterology Performance of disposable endoscopic forceps according to the manufacturing techniques
- Chang-Il Kwon, Gwangil Kim, Jong Pil Moon, Ho Yun, Weon Jin Ko, Joo Young Cho, Sung Pyo Hong
- Korean J Intern Med. 2019;34(3):530-538.
- The Usefulness of Angiotensin Converting Enzyme in the Differential Diagnosis of Crohn's Disease and Intestinal Tuberculosis
- Chang-Il Kwon, Pil Won Park, Haeyoun Kang, Gwang Il Kim, Sung Tae Cha, Kyung Soo Kim, Kwang Hyun Ko, Sung Pyo Hong, Seong Gyu Hwang, Kyu Sung Rim
- Korean J Intern Med. 2007;22(1):1-7.
- Significance of Non-erosive Minimal Esophageal Lesions in Gastro-esophageal Reflux Disorder
- Sung Pyo Hong, Pil Won Park, Seong Gyu Hwang, Kwang Hyun Ko, Sun Young Kwak, Se Hyun Kim, Kye Sook Kwon, Yong Woon Shin, Ji Kon Ryu, Kwang Hyun Ryu, Sang Jong Park, Wook Hee Won, Hyo Min Yoo
- Korean J Intern Med. 2004;19(2):93-98.